Linker errors

[yarrakonda srinivasa reddy]

HI

I am getting these errors. Could any one help if iam missing any lib file.

-Thanx
Sri

ld: warning: cannot find entry symbol _mainCRTStartup; defaulting to 
00401000
d:\gcc\usr\lib/libstdc++.a(iostream.o)(.text+0x14c):iostream.cc: undefined 
reference to `_imp___ctype_'
d:\gcc\usr\lib/libstdc++.a(iostream.o)(.text+0x519):iostream.cc: undefined 
reference to `_imp___ctype_'
d:\gcc\usr\lib/libstdc++.a(iostream.o)(.text+0xd9c):iostream.cc: undefined 
reference to `__umoddi3'
d:\gcc\usr\lib/libstdc++.a(iostream.o)(.text+0xdae):iostream.cc: undefined 
reference to `__udivdi3'
d:\gcc\usr\lib/libstdc++.a(iostream.o)(.text+0x17b7):iostream.cc: undefined 
reference to `_impure_ptr'
d:\gcc\usr\lib/libstdc++.a(iostream.o)(.text+0x17c3):iostream.cc: undefined 
reference to `fflush'
d:\gcc\usr\lib/libstdc++.a(iostream.o)(.text+0x17c8):iostream.cc: undefined 
reference to `_impure_ptr'
d:\gcc\usr\lib/libstdc++.a(iostream.o)(.text+0x17d4):iostream.cc: undefined 
reference to `fflush'
d:\gcc\usr\lib/libstdc++.a(streambuf.o)(.text+0x3e3):streambuf.cc: undefined 
reference to `__errno'
d:\gcc\usr\lib/libstdc++.a(filebuf.o)(.text+0x3f1):filebuf.cc: undefined 
reference to `open'
d:\gcc\usr\lib/libstdc++.a(stdstrbufs.o)(.text+0x4e):stdstrbufs.cc: 
undefined reference to `_impure_ptr'
d:\gcc\usr\lib/libstdc++.a(stdiostream.o)(.text+0x1c):stdiostream.cc: 
undefined reference to `fileno'
d:\gcc\usr\lib/libstdc++.a(stdiostream.o)(.text+0x155):stdiostream.cc: 
undefined reference to `getc'
d:\gcc\usr\lib/libstdc++.a(stdiostream.o)(.text+0x179):stdiostream.cc: 
undefined reference to `fread'
d:\gcc\usr\lib/libstdc++.a(stdiostream.o)(.text+0x19e):stdiostream.cc: 
undefined reference to `fwrite'
d:\gcc\usr\lib/libstdc++.a(stdiostream.o)(.text+0x1d1):stdiostream.cc: 
undefined reference to `fseek'
d:\gcc\usr\lib/libstdc++.a(stdiostream.o)(.text+0x1ee):stdiostream.cc: 
undefined reference to `fclose'
d:\gcc\usr\lib/libstdc++.a(stdiostream.o)(.text+0x231):stdiostream.cc: 
undefined reference to `fflush'
d:\gcc\usr\lib/libstdc++.a(stdiostream.o)(.text+0x279):stdiostream.cc: 
undefined reference to `fflush'
d:\gcc\usr\lib/libstdc++.a(stdiostream.o)(.text+0x2b0):stdiostream.cc: 
undefined reference to `fwrite'
d:\gcc\usr\lib/libstdc++.a(iogetline.o)(.text+0x9e):iogetline.c: undefined 
reference to `memchr'
d:\gcc\usr\lib/libstdc++.a(iovfscanf.o)(.text+0x61):iovfscanf.c: undefined 
reference to `_imp___ctype_'
d:\gcc\usr\lib/libstdc++.a(iovfscanf.o)(.text+0x8d):iovfscanf.c: undefined 
reference to `_imp___ctype_'
d:\gcc\usr\lib/libstdc++.a(iovfscanf.o)(.text+0x3bf):iovfscanf.c: undefined 
reference to `strtol'
d:\gcc\usr\lib/libstdc++.a(iovfscanf.o)(.text+0x3e6):iovfscanf.c: undefined 
reference to `strtoul'
d:\gcc\usr\lib/libstdc++.a(iovfscanf.o)(.text+0x407):iovfscanf.c: undefined 
reference to `strtoul'
d:\gcc\usr\lib/libstdc++.a(iovfscanf.o)(.text+0x489):iovfscanf.c: undefined 
reference to `strtoul'
d:\gcc\usr\lib/libstdc++.a(iovfscanf.o)(.text+0x511):iovfscanf.c: undefined 
reference to `strtol'
d:\gcc\usr\lib/libstdc++.a(iovfscanf.o)(.text+0x55c):iovfscanf.c: undefined 
reference to `_imp___ctype_'
d:\gcc\usr\lib/libstdc++.a(iovfscanf.o)(.text+0x5ac):iovfscanf.c: undefined 
reference to `_imp___ctype_'
d:\gcc\usr\lib/libstdc++.a(iovfscanf.o)(.text+0x823):iovfscanf.c: undefined 
reference to `_imp___ctype_'
d:\gcc\usr\lib/libstdc++.a(iovfscanf.o)(.text+0x87d):iovfscanf.c: undefined 
reference to `_imp___ctype_'
d:\gcc\usr\lib/libstdc++.a(iovfscanf.o)(.text+0x8be):iovfscanf.c: undefined 
reference to `_imp___ctype_'
d:\gcc\usr\lib/libstdc++.a(iovfscanf.o)(.text+0x915):iovfscanf.c: more 
undefined references to `_imp___ctype_' follow
d:\gcc\usr\lib/libstdc++.a(fileops.o)(.text+0x19d):fileops.c: undefined 
reference to `__errno'
d:\gcc\usr\lib/libstdc++.a(fileops.o)(.text+0x1d7):fileops.c: undefined 
reference to `open'
d:\gcc\usr\lib/libstdc++.a(fileops.o)(.text+0x210):fileops.c: undefined 
reference to `__errno'
d:\gcc\usr\lib/libstdc++.a(fileops.o)(.text+0x26d):fileops.c: undefined 
reference to `__errno'
d:\gcc\usr\lib/libstdc++.a(fileops.o)(.text+0x398):fileops.c: undefined 
reference to `__errno'
d:\gcc\usr\lib/libstdc++.a(fileops.o)(.text+0x45d):fileops.c: undefined 
reference to `__errno'
d:\gcc\usr\lib/libstdc++.a(fileops.o)(.text+0x5ad):fileops.c: undefined 
reference to `__errno'
d:\gcc\usr\lib/libstdc++.a(fileops.o)(.text+0x821):fileops.c: undefined 
reference to `read'
d:\gcc\usr\lib/libstdc++.a(fileops.o)(.text+0x845):fileops.c: undefined 
reference to `lseek'
d:\gcc\usr\lib/libstdc++.a(fileops.o)(.text+0x865):fileops.c: undefined 
reference to `fstat'
d:\gcc\usr\lib/libstdc++.a(fileops.o)(.text+0x881):fileops.c: undefined 
reference to `close'
d:\gcc\usr\lib/libstdc++.a(filedoalloc.o)(.text+0x98):filedoalloc.c: 
undefined reference to `isatty'
d:\gcc\usr\lib/libstdc++.a(floatconv.o)(.text+0x1278):floatconv.c: undefined 
reference to `__errno'
d:\gcc\usr\lib/libstdc++.a(floatconv.o)(.text+0x1283):floatconv.c: undefined 
reference to `_imp____infinity'
d:\gcc\usr\lib/libstdc++.a(floatconv.o)(.text+0x13e2):floatconv.c: undefined 
reference to `__errno'
d:\gcc\usr\lib/libstdc++.a(cleanup.o)(.text+0xf):cleanup.c: undefined 
reference to `atexit'
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